Concord, Mass.
1893 
Sept. 3                                                                                                        
  Cloudless with clear, sparkling air and puffy W. wind.
Very cold last night with slight frost. The thermometer
at the Buttericks stood at 38 [degrees] shortly after sunrise.
  I made a short visit to Balls' Hill this forenoon
sailing down and paddling back in time for dinner.
Along the river  I saw but few birds: - five Swift flying
together, three Bobolinks in one palace and two in another,
a flock of 25 Red-wings (counted), two or three Barn Swallows,
an Indigo Bird, & several Song Sparrows. A Warbling
and a Yellow-throated Vireo were singing near the house
early this morning but the river bank and meadows
have been silent for a week or more save for the
chatter of Red-wings, the pink of Bobolinks, the twitter
of Swifts and the various insect sounds.
The rose mallow  and iron weed are still in flower.
  Landing at the cabin I walked north to Davis Swamp
and back over Davis Hill.. Startled a brood of five
Partridge in the Glacial Hollow and immediately behind
Balls' Hill came upon a large mixed flock of several
birds in mixed pines & birches.By screeping a little
I called them them around me and made the following                
censis [census]. One Catbird, several Chickadees, two Nashville
Warblers, two Yellow Warblers, one Black-throated Green
Warbler, three Chestnut-sided Warblers, and two Redstarts.
There were doubtless others that I did not show themselves.
In several other places I heard Warblers chirping
but could not identify the birds. Saw a solitary
Mniotilta and two Maryland Yellow - throats.
[margin]Mixed flock[/margin]
Two of the Chestnut sides were old males in full autumn
plumage showing a broad band of chestnut on the flank.